阳离子引入对CsPF6:Mn4+红色荧光粉发光性能的影响 |
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引用本文: | 何盛安,徐范范,吴迪,王智伟,彭家庆,叶信宇. 阳离子引入对CsPF6:Mn4+红色荧光粉发光性能的影响[J]. 有色金属科学与工程, 2020, 11(5): 111-117. DOI: 10.13264/j.cnki.ysjskx.2020.05.016 |
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作者姓名: | 何盛安 徐范范 吴迪 王智伟 彭家庆 叶信宇 |
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作者单位: | 1a.江西理工大学,材料冶金化学学部, 江西 赣州 341000 |
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基金项目: | 国家自然科学基金;江西省稀土功能材料创新中心开放基金;江西省研究生创新专项;江西省教育厅科技项目;江西省井冈青年学者计划;教育厅科技项目 |
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摘 要: | 采用共沉淀法在室温条件下合成了CsPF6:Mn4+荧光粉,研究了Li+、Na+、K+阳离子的引入对CsPF6:Mn4+荧光粉发光强度的影响。所制备的系列荧光粉样品均为立方结构纯相。在蓝光激发下,呈现最强峰位于634 nm处的一系列窄带红色发射。加入K+和Li+后,发光强度增强,加入Na+后发光强度有所减弱,其中加入K+的CsPF6:Mn4+荧光粉发光强度最强。CsPF6:Mn4+, K+荧光粉的发射强度随着温度的上升先增强然后由于非辐射跃迁的增加而降低,在423 K时达到最大值,发射强度相较于未引入阳离子的荧光粉发射强度亦增强。阳离子的引入可以有效提升CsPF6:Mn4+荧光粉的发光性能。
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关 键 词: | Mn4+ 红色荧光粉 阳离子 |
收稿时间: | 2020-06-19 |
Effects of introducing cations on the luminescence performance of CsPF6:Mn4+ phosphor |
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Affiliation: | 1a.Faculty of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China1b.Key Laboratory of Rare Earth Luminescence Materials and Devices of Jiangxi Province, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China2.National Engineering Research Center for Ionic Rare Earth, Ganzhou 341000, Jiangxi, China3.Jiangxi Rare Earth Functional Materials Technology Co., Ltd., Ganzhou 341000, Jiangxi, China |
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Abstract: | The CsPF6:Mn4+phosphor was synthesized via a facile co-precipitation route. The effects of introducing cations Li+, Na+ and K+ into CsPF6: Mn4+ phosphor on the luminous intensity were studied. The prepared phosphor samples were all in pure phases. Under blue light excitation, a series of sharp red emission lines appeared, which peaked at 634 nm. After doping with K+ and Li+, the emission intensities increased, but after doping with Na+, the emission intensity decreased. Among them, the luminescence intensity of CsPF6:Mn4+ phosphor with the addition of K ion was the strongest. The emission intensity of CsPF6:Mn4+ phosphor first increased with the rise of temperature and then decreased with the increase of non-radiation transition. It reached its maximum value at 423 K, and the emission intensity also increased, compared with that of phosphors without cation introduction. It is proved that the introduction of cation can effectively improve the luminescence performance of CsPF6:Mn4+ phosphor. |
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